class ActionDispatch::Response::FileBody

:nodoc:
the path directly, so there is no reason to open the file.
Rack::Sendfile will usually intercept the response and uses
Avoid having to pass an open file handle as the response body.

def body 

def body
  File.binread(to_path)
end

def each

Stream the file's contents if Rack::Sendfile isn't present. 
def each
  File.open(to_path, "rb") do |file|
    while chunk = file.read(16384)
      yield chunk
    end
  end
end

def initialize(path) 

def initialize(path)
  @to_path = path
end